[davey48016]

It depends at least partially on how much they're going to float. I think SpaceX is only planning about a 4% float, so even at $1.5T they only need around $60B. Which is a drop in the bucket.

EDIT - but that's just the IPO, I wasn't even thinking about how much insiders will want to sell after the lockup ends...

[ecommerceguy]

Is 100+ FPE the new normal?

[phkahler]

The valuation just needs to be high enough to get into an index, then the 401K plans start buying the shares automatically.

[einrealist]

Must be retail investors believing: big number == good.